Self-closing hinge for shutters



PATBNTBD JAN. '29, .1907.

SHEETS-SHEET 1.

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P. c. KASGH .& w. EB-BRHARD. SELF CLOSING HINGE P03 sHUTTERs.

APPLICATION I'IKLBD MAY'25, 1904.

and WZZZZZ 1HE Hormis Prfsks 19m-842,404. PATENTBD JAN. 29, 1907. P. 9. KASGML W. BBERHARD. SELF CLOSING HINGE EUR SHUTTERS.

APPLICATION HLED 11H25, 1904.

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THE NORRIS PETERS C0.. WASHINGTON, Et, C.-

N0. 842,404. L. PATENT-LD JAN. v29', 1907.

' P.c. NASCE 0 NLBLNHAND. SELF CLOSING HINGE F00 sHUTLLRs.

l41=`1 L104T10N FILED MAY 25, 1904.

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f UNiTE s'rATEs PATENT OEEiOE.

FREDERICK O. KASOH AND WILLIAM EBERHARD, OF AKRON, OHIO ASSIGNORS TO THE KASCH ROOFIN G COMPANY, OF AKRON, OHIO A CORPORATION.

SELF-CLOSING; HINGE FOR SHUTTERS.

Specification of Letters Patent.

Patented Jan. 29, `1907'.

Application filed May 25,1904. Serial No. 209.647.

ments in Self-Closing Hinges for Shutters, of

. ing the anchor-plates.

which the following is a specification. y

-The present invention relates to iireproof shutters for the windows and doors of buildings. Its object is, primarily, to provide a shutter which will close automatically and remain closed in the event of a fire occurring in its vicinity and also which may normally be opened to any angle desired, locked automatically in such opened position or when closed, and readily unlocked. either from the inside or outside.

Further objects are to provide hinges and anchor-plates therefor which will not only be iirm and durable, but also interchangeable for right or left handed shutters and interlocking, so as to insure the accurate fitting together of the parts.

To these ends our invention consists in the features and combinations hereinafter described and claimed, an embodiment thereof being illustrated in the accompanying drawings, in which- Figure I is an outside elevation of a fireshutter. Fig. II. is an elevation of a portion of the face of a wall, showing the anchorplates set therein. Fig. III is a plan view, partly in section and Fig. IV is a sectional elevation of a portion of a fire-shutter, showing the latch. Fig. V is an elevation of the wall hingeplate, partly broken away, show- Fig. VI is a front view, partly in section, of the anchor-plates, Fig. VII is a section taken on line VII VII of Fig. V. Fig. VIII is a sigle view of the plates shown in Fig. VII. Fig. IX is an outside view of the lower hinge as it would appear upon a closed shutter, and Fig. X shows the hinge as it would appear upon a shutter opened at right angles with the wall. Fig. XI is a plan view, and Fig. XII is a front elevation, of the upper portion of the hinge and cable fastening. Fig. XIII is a front view of the inner side of the pawl and its casing, and Fig. XIV is a section taken on the center line of Fig. XIII. Fig. XV is a plan view of the ratchet. Fig. XVI is a section taken on line XVI XVI of Fig. XV.

The reference-letter a indicates a fire-shutter which may be of the usual or any suitable type having two or more hinge-plates l) bolted or otherwise securely fastened thereto and provided, respectively, with rearward projections vbored to receive the upright hinge-bolts c and fit loosely thereon. The stationary or wall hinge-plates d are iir-mly secured to the Wall of the building by bolts 18 and have outwardly-projecting lugs or brackets e' and f to receive the hinge-bolts c, as shown. The upper hinge-lug e has a shoulder formed upon its upper face at g, and two parallel grooves extend, one upon each side of the hinge-bolt aperture, from said shoulder outward and down the outer edge` of the lug. The end ortions of a flexible cable 7L, preferably of ine tinned-steel wires, are laid, respectively, in said grooves, and corresponding grooves are formed in the under side of the head i of the hinge-bolt c to iit over said cable. The cable is also provided with sleeves j, soldered or brazed upon its ends, which are designed to bear against the shoulder g and the bolt-headft and prevent the cable ends drawing through the grooves. Upon the hub of the hinge-plate b a short projecting shank 7c is formed and provided with a head. This shank or button is designed to rest in the bight of the cable L, as shown, and the hubs of the plates l) being much shorter than the distance between the lugs e and f the cables h are made of such length that they act as hangers and uphold the weight of the shutter. When the shutter is closed, the flexible hangers h assume the position plainly shown in Fig. IX, and as the shutter is swung open the said hangers wraparound their respectivehinge-bolts c, which raises the plates b upon the hinge-bolts and lifts the shutter through a distance proportioned to the angle ofits opening. It is therefore evident that the shutter will close by gravity unless means are provided to hold it open.

' For the purpose of holding the shutter open under normal conditions at any desired an- IOO to engage the pawl m and a central aperture to receive the lower end of the hinge-bolt c, The rim is notched at o to iit over the lower hinge-lugf, and it is held in place against the lower face of said lug by the nut 19 on the lower end of the hinge-bolt, as shown in Figs. IX, X, XV, and XVI. The ratchet is made double-faced, as shown, so that it can be used for either right or left handed hinges. A light chain 20 may be employed, connecting the segment n to the disk Z, so that in case fire should occur and melt the solder the said segment will only drop the length of said chain from the disk l.

The gravity-pawl m is adapted to reciprocate vertically in an open-topped casing p, its lower edge being beveled to correspond to the ratchet-teeth and its upper end being formed into a head g, overlapping the said.

the sleeve s with such force and impact casing, as shown in Figs. XIII and XIV. A

'stop 2-should be provided to prevent the pawl being lifted out of the casing. The casing p is bolted to the inner side of the hubarm of the hinge plate l). Thus it will readily be understood that as the shutter is swung open the pawl m slides over and engages consecutively with the teeth on the segment a to hold the shutter open in any desired position and that the head of the pawl may be grasped and lifted by the hand, whereupon the shutter will close by gravity.

Set into the bottoni of the pawl-casing p and standing upright therein is a guide-rod yr, upon which a sleeve s is slidably mounted. A spiral spring t fits loosely in the casing p, resting upon the bottom thereof, and the lower part of the sleeves is inserted in the upper end of said spring. The upper part of the sleeve s is larger in diameter than the part Within the spring, thus providing a square shoulder at u for the latter to bear against. A vertical slot a' is made in the upper part of the front of the casing p, through which a lug i), carried by the sleeve s, projects. A similar lug w projects from the front face of the casing near its lower end, the function of the lugs i) and 'w being to receive and engage the respective ends of a fusible link to hold the spring t compressed in the casing. The said fusible link may be of the usual or any suitable design, consisting, essentially, of two parts y and z, held together with solder which fuses at a comparatively low temperature. Therefore while the pawl m engages the ratchet-teeth on the segment a to hold the shutter open under ordinary conditions should a iire occur in the vicinityof the device the resulting high temperature would -soften the solder in the fusible link, whereupon the spring t would be released and raise against the under side of the pawl-head y that the said pawl would be suddenly released from and held above the ratchet-teeth, thus permitting the shutter to close by gravity, and in case the pawl should fail to be released the solder holding the ratchet-segment a would soon be melted, and thus release the shutter.

A latch il, Figs.' I, III, and IV, is hinged upon the inside of each shutter a, its inner end being weighted, beveled, and shouldered to ride over and engage with a staple or other suitable means 5, and it should be provided with a handle 6, extending through the sluitter, so that it may be released from the outside, all as plainly shown in the drawings.

Since the walls of 'Iireproof buildings are usually constructed of bricks, it is essential in equipping such buildings with fire-shutters to provide iirm and durable' means for their attachment, which we will proceed to describe. Set vertically in the wall, preferably Vthe width of a brick thereof from the window or door aperture, is an anchor-plate 7, having openings S therein to be iilled in with mortar and provided with tapped holes 9 in its front edge to receive, respectively, the upper and lower fastening-bolts 18 of the wall hinge-plate d. Ribs 10 are formed on the plate 7 to support a horizontal anchorplate 11, which is inserted through an aperture in said vertical plate and provided with an upright 'liange 12, through which it is secured to the vertical plate by bolts 13. The plate 11 has openings 14 for receiving mortar and is flanged upward and widened at its outer end. A tapped hole 15 is formed in said outer flange for receiving the outer bolt 18 of the hinge-plate (Z, and said hole is counterbored, as shown. The plate 11 is preferably inadc with its inner and outer sides alike, as shown, so that it can be used upon either the right or left side of the shutter. A thin flange 16 is carried by the plate 7, designed to set close against the outer face of the wall, and extending rearwardly is provided with a boss 17, surrounding the bolthole and adapted to iit into the counterbore in the plate 11. Thus are the anchor-plates locked together and the proper positions of the hinge-bolt holes assured. The hingeplate d is countersunk underneath, as shown in Fig. V, to fit over the iiange 16, so that its outer edges iit against the wall, and whereby it is held more Ylirmly in place.

Having now so fully described our invention that those skilled in the art to which it appertains can make and use it either in the form shown herein or under some modification thereof, whatwe claim as new, and desire to secure by Letters Patent, is-

1. The combination of a stationary hingepiece, an upright hingepin secured in said stationary hinge-piece, a swinging hingepiece slidably mounted upon said hinge-pin, and a llenible hanger depending from said stationary hinge-piece and adapted to uphold said swinging hinge-piece, substantially as set forth.

IOO

IIO

2. The combination with a shutter, of a stationary hinge-piece, an upright hinge-pin secured in said stationary hinge-piece, a

swinging hinge-piece secured to said shutterand slidably mounted upon said hinge-pin, and a flexible hanger depending from said stationary hinge-piece adapted to uphold said swinging hinge-piece and wrap around the hinge-pin as the shutter is opened, substantially as set forth.

3. The. combination with a shutter, of a stationary hinge-piece, an upright hinge-pin secured in said stationary hinge-piece, a swinging hinge-piece secured to said shutter and provided with a hub slidably mounted upon said hinge-pin, and a flexible hanger dependingl from said stationary hinge-piece and supporting the hub of said swinging hinge-piece, said hanger being so disposed that it is wrapped around the hinge-pin by the opening of the shutter, substantially as set forth.

4. The combination with a shutter, of a hinge-piece adapted to be secured to the wall and having lugs projecting therefrom, an upright hinge-bolt mounted in said lugs, a flexible hanger depending from the upper one of said lugs having its ends secured thereto by said hinge-bolt, and a hinge-piece secured to the shutter provided with a hub slidably mounted upon said hinge-bolt and having a suitable button proj ecting therefrom adapted to be supported in the depending bight of said hanger, substantiall;7 as set forth.

5. The combination of a stationary hingepiece, an upright hinge-pin secured in said stationary hinge-piece, a swinging hingepiece slidablymounted upon said hinge-pin, a flexible hanger depending from said stationary hinge-piece and adapted to uphold said swinging hinge-piece, a circular ratchet upon said stationary hinge-piece, and a pawl carried by said swinging hinge-piece adapted to engage the teeth of said ratchet, substantially as set forth.

6. The combination with a shutter, of a stationary hinge-piece, an upright hin ge-pin secured. in said stationary hinge-piece, a swinging hinge-piece secured to said shutter and slidably mounted upon said hinge-pin, a flexible hanger depending from said stationary hinge-piece adapted to uphold said swinging hinge-piece and wrap around said hingepin as the shutter is opened, a pawl carried upon said swinging hinge-pie ce, and a ratchet upon said stationary hinge piece having teeth concentrically disposed about said hinge-pin and adapted to consecutivelyT engage said pawl as the shutter is opened, substantially as set forth.

7. The combination of a stationary hingepiece, an upright hingepin secured in said stationary hinge-piece, a swinging hingepiece slidably mounted upon said hinge-pin, a flexible hanger depending from said stasaid wall hinge-piece vadapted to uphold said swinging hinge-piece and wrap around said hinge-pin as said shutter 1s opened, a suitable ratchet carried. by said wall hinge-piece, a

pawl-casing secured to said swinging hingepiece, a pawl slidably mounted in said casing adapted to normally engage the teeth of said ratchet, and means adapted to disengage said pawl from said ratchet upon the temperature of said means reaching an abnormally high degree, substantially as set forth.

9. In a fire-shutter, the combination of a wall hinge-piece provided with an upright hinge-pin and a suitable ratchet, a hingepiece secured to said shutter and slidably mounted upon said hinge-pin, flexible means 9 for suspending said shutter from said wall hinge-piece adapted to raise the shutter as it is opened, a pawl adapted to swing with said shutter and normally engage with said ratchet, and means for releasing said pawl from said ratchet adapted to be thrown into operation by excessive heat, substantially as set forth.

10. In a fire-shutter, the cdmbinatin of a wall hinge-piece provided with an upright hinge-pin and a suitable ratchet, a hingepiece secured. to said shutter and slidably mounted upon said hinge-pin, flexible means for suspending said shutter from said wall hinge-piece adapted to raise the shutter as it is opened, a pawl adapted to swing with said shutter and normally engage with said ratchet, spring-operated means for` disengaging said pawl from said ratchet, and a fusible link adapted to hold said disengaging means out of operation, substantially as set forth.

11. In a self-closing shutter, the combination of a suitable stationary ratchet, apawlcasing adapted to swing with the shutter, a gravity-pawl adapted to engage said ratchet slid ably mounted in said casing and provided with a suitable head, a releasing piece mounted to slide vertically in said casing under the head of said pawl, a spring under said releasing-piece, and a fusible link outside ofsaid casing connecting thelatter to said releasing-piece and holding said spring in compression, vsubstantially as set forth.

12. The combination with a shutter havsubstantially its set forth.

ing' zt hinge-plate attached thereto7 of a verl Wall hinge-piece provided with an upright tical Wall anchor-plate, a horizontal Wall l hinge-pin, a shutter hinge-piece mounted to anchor-plate extending through and secured l swing' upon said hinge-pin, a paWl adapted to seid vertical anchor-plate, and a Wall l to swing Wit-h said shutter, a ratchet center hinge-plate adapted to be attached to both piece secured to said Wall hinge-piece, and a of sitid anchor-plates, substantially as set circular segmental ratchet soldered to said forth. center piece and provided with teeth to en- 13; The combination with a shutter hztvgage said pawl, substantially as set forth. ing a hinge-plate attached thereto, of e ver- In testimony whereof We aJX our signatical Wall anchor-plate provided With a flange tures, in the presence of tWo subscribing Wita'dapted t-o lie against the Wall-face, a horinesses7 'at Akron, Ohio, this 2d day otMay,

PETER THEKEN,

Zontztl Wall anchor-plate extendingV through l 1904.

. tlg lclgtl gggCgg-sgg hinge-plate adapted to lit over said flange and be bolted to both of said anchor-plates, I Witnesses:

14. In a fire-shutter, the combination of a WV. R. MCNABB. 

